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No. 613,932. Patented Nov. 8, I898. w.,m. momou. SASH CORD FASTENER.

(Applicatidn filed Jan. 3, 1 898.) (N0 Model.)

WK mintnr.

Attorneygi f fi WWWMU Witnesses.

UNITED STATES PATENT OFFICE.

WILLIAM M. MORTON, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO HOBART B. IVES, OF SAME PLACE.

SASH-CORD FASTEN ER.

SPECIFICATION forming part of Letters Patent No. 613,932, dated November 8, 1898.

Application filed January 3, 1898. Serial No. 665,351. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM M. MORTON, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Sash-Cord Fasteners; and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to devices for anchoring the end of the sash-cord to a window-sash and it has for its object to provide a simple and inexpensive device for this purpose which will securely anchor the cord, chain, or tape which sustains the weight without danger of splitting or otherwise marrin g the sash, which cannot become accidentally disengaged from the sash, and which can be readily and quickly detached from the sash whenever it becomes necessary or desirable to remove it.

To this end my invention consists in the device for such purpose constructed and op erating as hereinafter fully described, and particularly pointed out in the claims.

Referring to the drawings, in which like numerals designate like parts in the several views, Figure 1 is a view in perspective of a portion of a window-sash equipped with a sash-cord fastener embodying the invention, the latter being shown in its operative position. Fig. 2 is an end view of the fastener as designed for attachment to a sash-cord. Fig. 3 is a side view thereof. Fig. 4 is an end view of the fastener as designed for attachment to a sash-chain. Fig. 5 is'a similar view thereof, showing the shank portion in its blank or unbent condition. Fig. 6 is an end View of the fastener as arranged for attachment to a tape. Fig. 7 is a similar view thereof before the shank portion is bent to clasp the tape.

The numeral 1 designates a portion of a window-sash having therein the usual cord groove 2 and circular socket 3 at the lower end ofsaid groove to receive the anchoring device for the cord. The fastening device devised by me is preferably formed from a single piece of sheet metal and consists of a head 4, forming the segment of a cylinder whose diameter corresponds substantially with that of the socket 3, whereby the outer face of said head is adapted to closely fit against the wall of said socket, and a shank 5, which projects radially from said head at a point substantially midway between the two ends of the latter. At its inner end said head is provided with one or more spurs 6, projecting radially therefrom and having their edges sharpened,whereby they are adapted to pierce the wall of the socket 3, as will be presently described. As herein shown, there are two of said spurs located adjacent to the side edges of the head; but a greater number thereof or a single spur or flange extending across the entire end of the head can be employed, if desired, the office of such spur or spurs being to prevent accidental withdrawal of the head from the socket by being forced into the wall of the latter by the strain exerted by the weight. The penetration of said spur or spurs is limited by the engagement of the outer face of the head with the wall of the socket, whereby all danger of splitting the wood and of slackening the cord is obviated.

The shank 5 is stamped from the sheet metal blank from which the fastener is formed and bent outwardly, sufficient stock being left at the point where the neck 7 joins the head to afford ample strength. As shown in Figs. 1, 2, and 3, the main body portion of the shank 5 is bent transversely to a substantially tubular form to adapt it to embrace the sashcord Sand is provided at its edges with a series of toothed lips 9, which by being forced 8 into the body of said cord securely fasten the shank thereto, as is common in this class of fasteners.

In the form shown in Figs. land 5 the shank 10 is adapted to be used in connection with 0 a chain 12, and consists in its blank form of a rectangular plate provided with two lugs 13 projecting from its side edges, a lug 14 projecting from its upper side, and a lug 15 stamped from its central portion. To adapt 5 said blank to receive the chain, its side edges are bent at a right angle to form the two side flanges 16, (see Fig. 4,) and the chain being laid between said flanges the lugs 13 are bent inwardly against the first link thereof, the

lug 15 is passed through said link and bent inwardly, and the lug 11 is inserted through the second link and bent in a similar manner. I thus secure a very secure form of connection between the chain and fastener, but do not confine myself to the precise details of construction thereof.

In the form shown in Figs. 6 and 7 the shank 17 is adapted for use in connection with a metallic tape 18, and is provided at its upper end with two oppositely-projecting wings 19 and at a point slightly below them with two oppositely-projecting Wings 20 of greater width. The reversed end of the tape being laid against the face of said shank, the wings 20 are bent inwardly against said end. The body of the tape is then carried upwardly against the outer side of said wings and between the wings 19, which latter are then bent inwardly against it, as shown in Fig. 6, thus securely locking the fastener to the tape.

lVhile I have thus shown three specific forms of shank, it will be understood that they differ from each other only in their means for engaging the thing to which the fastener is to be secured and that, so far as my present invention is concerned, they may be considered to be one and the same shank.

By making the head -l in the form of the segment of a cylinder I secure an extended area of bearing-surface against the wall of the socket 3, which effectually prevents any marring or chipping of said wall and insures a close fit between said head and wall at all times, and by causing the shank 5 to project from said head at a point substantially midway between the two ends of the latter the strain exerted by the weight is evenly distributed over the area of the head in such manner as to prevent any tilting tendency of the head within the socket. Furthermore, by thus causing the pull on the shank to be exerted in a plane at a right angle to the axis of the head and midway between the ends of the latter I secure a resisting strength equal to the tensile strength of the metal itself without any lateral strain thereon, whereby I am enabled to make the fastener from a lighter grade of metal than would otherwise be possible without detracting from its ability to withstand the strain to which such devices are subjected in use.

\Vhile the spurs 6 penetrate the wall of the socket 3 sufficiently to prevent any tendency of the head to work outwardly from said socket, they can be readily disengaged from said wall when the cord or chain is slackened to enable the head to be withdrawn from the socket whenever it becomes necessary or desirable to remove the sash from the windowcasing.

By stamping the shank 5 from the sheet metal blank and bending it outwardly therefrom, as described, I avoid any waste of stock and materially reduce the cost of manufacture of the fastener, while at the same time conserving its strength, as before described.

I am aware that sash-cord fasteners have been made from sheet metal; but in such fasteners as heretofore made the surface which engages the wall of the socket in the sash is located wholly to one side of the shank by which connection is made with the cord or chain, thereby causing the strain exerted by the weight to tend to tilt the fastener and producing a cramping action between the engaging portion of the fastener and the wood, which is liable to cause the wood to split and the fastener to become loosened. The fastener herein shown and described differs materially from such previous fasteners in that it has a head which forms the segment of a cylinder, thus securing an extended area of convex bearingsurface, and has a shank which leads from said head at a point substantially midway between its ends, thus securing a bearing on opposite sides of said shank in such manner as to prevent any undue strain upon the fastenerand any cramping action upon the Wood.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

l. A sash-cord fastener formed from sheet metal and consisting of a head and a shank which projects from said head at a point substantially midway between the ends of the latter, said head having the form of the segment of a cylinder and being provided at or near one end thereof with a radially-projecting spur, substantially as described.

2. A sash-cord fastener composed of a single piece of sheet metal and consisting of the head 4 having the form of the segment of a cylinder and provided at its inner end with the radial spurs 6, and the shank 5 projecting from said head at a point substantially midway between the ends of the latter, said shank being bent transversely to substantially cylindrical form and being provided at its edges with the series of toothed lips 9, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM M. MORTON.

Witnesses:

WM. 11. CHAPMAN, GEO. E. HALL. 

